Alaska earthquakes

M2.1 earthquake 26 km S of Old Harbor, Alaska

A magnitude 2.1 earthquake struck 26 km S of Old Harbor, Alaska on Tue, Feb 23, 2021, 8:01 AM AKST (17:01 UTC), 25 km (16 mi) below the surface.

A larger quake followed: M3.5 50 km W of Akhiok, Alaska. This one was a foreshock.

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Map

Where this earthquake was located, with the others nearby. Select one for its page.

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The earthquake

Magnitude
2.1 (ml), micro
Local time
UTC
2021-02-23 17:01:54 UTC
Depth
25.2 km (15.7 mi), shallow
Epicenter
56.971° N, 153.376° W
Region
Alaska
Tsunami flag
No
Status
Reviewed by a seismologist

Did you feel it?

No one has reported feeling this quake to the USGS.

How well it is located

Reviewed by a seismologist.

Stations used
30

Nearest places

Distance and direction from each place to the epicenter, with its forecast.

Nearby

Within 100 km, magnitude 1.5 and up: 31 in the 60 days after this one and 13 in the 30 days before it.

After

  1. 1.628 km N of Old Harbor, Alaska · 2043 days ago · 35 km deep · 53 km away
  2. 1.651 km WNW of Akhiok, Alaska · 2041 days ago · 46 km deep · 98 km away
  3. 1.554 km WNW of Akhiok, Alaska · 2041 days ago · 27 km deep · 100 km away
  4. 1.732 km ENE of Old Harbor, Alaska · 2039 days ago · 2 km deep · 51 km away
  5. 1.538 km WSW of Port Lions, Alaska · 2035 days ago · 50 km deep · 92 km away
  6. 1.528 km WSW of Port Lions, Alaska · 2035 days ago · 38 km deep · 88 km away
  7. 3.064 km SSE of Akhiok, Alaska · 2035 days ago · 1 km deep · 65 km away · felt by 2
  8. 1.521 km SW of Karluk, Alaska · 2033 days ago · 10 km deep · 95 km away
  9. 1.923 km SSW of Karluk, Alaska · 2029 days ago · 25 km deep · 89 km away
  10. 2.434 km NNE of Larsen Bay, Alaska · 2027 days ago · 46 km deep · 98 km away
  11. 1.632 km W of Port Lions, Alaska · 2026 days ago · 9 km deep · 96 km away
  12. 2.413 km WSW of Akhiok, Alaska · 2023 days ago · 11 km deep · 61 km away
  13. 2.414 km SSW of Port Lions, Alaska · 2023 days ago · 58 km deep · 89 km away
  14. 1.518 km E of Akhiok, Alaska · 2018 days ago · 7 km deep · 30 km away
  15. 1.848 km SW of Akhiok, Alaska · 2018 days ago · 51 km deep · 93 km away
  16. 2.433 km S of Larsen Bay, Alaska · 2018 days ago · 8 km deep · 49 km away
  17. 1.712 km SSW of Larsen Bay, Alaska · 2016 days ago · 12 km deep · 64 km away
  18. 2.336 km NNE of Larsen Bay, Alaska · 2014 days ago · 46 km deep · 98 km away
  19. 1.939 km SW of Akhiok, Alaska · 2009 days ago · 18 km deep · 83 km away
  20. 2.137 km SW of Karluk, Alaska · 2007 days ago · 47 km deep · 99 km away
  21. 1.929 km WSW of Old Harbor, Alaska · 2002 days ago · 36 km deep · 30 km away
  22. 1.659 km ESE of Akhiok, Alaska · 2000 days ago · 18 km deep · 35 km away
  23. 3.550 km W of Akhiok, Alaska · 1996 days ago · 14 km deep · 98 km away
  24. 1.917 km NNW of Larsen Bay, Alaska · 1996 days ago · 85 km deep · 91 km away
  25. 1.527 km SE of Larsen Bay, Alaska · 1995 days ago · 45 km deep · 49 km away
  26. 1.616 km S of Karluk, Alaska · 1994 days ago · 61 km deep · 84 km away
  27. 1.834 km NW of Akhiok, Alaska · 1994 days ago · 49 km deep · 78 km away
  28. 2.019 km SW of Karluk, Alaska · 1994 days ago · 44 km deep · 97 km away
  29. 1.829 km SSW of Karluk, Alaska · 1993 days ago · 43 km deep · 90 km away
  30. 2.211 km WNW of Larsen Bay, Alaska · 1993 days ago · 37 km deep · 83 km away
  31. 1.619 km ENE of Akhiok, Alaska · 1991 days ago · 41 km deep · 32 km away

Before

  1. 3.047 km SSW of Karluk, Alaska · 2045 days ago · 56 km deep · 94 km away
  2. 1.632 km W of Port Lions, Alaska · 2046 days ago · 44 km deep · 98 km away
  3. 1.746 km WNW of Akhiok, Alaska · 2047 days ago · 10 km deep · 90 km away
  4. 1.810 km NW of Akhiok, Alaska · 2053 days ago · 62 km deep · 55 km away
  5. 1.518 km SW of Port Lions, Alaska · 2059 days ago · 44 km deep · 88 km away
  6. 2.013 km W of Larsen Bay, Alaska · 2059 days ago · 43 km deep · 79 km away
  7. 2.010 km SSW of Karluk, Alaska · 2060 days ago · 51 km deep · 89 km away
  8. 1.635 km SSW of Akhiok, Alaska · 2060 days ago · 43 km deep · 75 km away
  9. 2.8113 km SSE of Old Harbor, Alaska · 2066 days ago · 5 km deep · 99 km away
  10. 1.761 km S of Akhiok, Alaska · 2066 days ago · 11 km deep · 78 km away
  11. 1.917 km W of Akhiok, Alaska · 2069 days ago · 10 km deep · 66 km away
  12. 2.024 km WSW of Akhiok, Alaska · 2070 days ago · 8 km deep · 71 km away
  13. 1.630 km W of Port Lions, Alaska · 2070 days ago · 40 km deep · 96 km away

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Sources

From the USGS Earthquake Hazards Program and its partner networks, event ak0212hl5fnj. Read Tue, Sep 29, 2026, 10:02 PM UTC.